Species-specific and female host-biased ectophoresy in the roundworm Caenorhabditis japonica
Species-specific and female host-biased ectophoresy in the roundworm Caenorhabditis japonica
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蛔虫日本线虫的物种特异性和雌性宿主偏向性电泳
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
Etsuko Okumura
中科院分区：
文献类型：
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作者：
T. Yoshiga;Y. Ishikawa;Ryusei Tanaka;M. Hironaka;Etsuko Okumura
日本小杆线虫是一种在半社会性的穴居虫日本拟石虫上发现的噬菌线虫，具有卵保护和食物供给行为。为了了解C.通过对日本赤眼蜂与日本赤眼蜂关系的研究，我们证明了这种关联的特异性和全年线虫数量在昆虫上的波动。C.在所有种群中，日本螟幼虫（DL）主要以团块形式出现在雌虫身上，而很少出现在雄虫身上，处于非取食滞育阶段。这种女性偏见的协会是一致的，全年，但孵化后，线虫没有检测到母亲的昆虫表现出供应行为。幼虫体上出现DL，其后新羽化的雌虫体上的DL数量逐渐增多。C.迄今为止，从未在从日本对虾栖息地收集的其他无脊椎动物上检测到日本对虾。我们的数据表明，C. japonica和P.japonensis是同步的。
Caenorhabditis japonica is a bacteriophagous nematode species that was discovered on the semi-social burrower bug, Parastrachia japonensis, which demonstrates egg-guarding and provisioning behaviors. To understand the life history of C. japonica in relation to P. japonensis, we demonstrated the specificity of this association and fluctuations in nematode number on the insect throughout the year. C. japonica dauer larvae (DL), larvae in a nonfeeding diapause stage, were predominantly found as clumps on the adult female insects but rarely found on the male insects in all populations examined. This female-biased association was consistent throughout the year, but after the nymphs hatched, nematodes were not detected on the mother insects showing provisioning behavior. DL appeared on the nymphs, and the number of DL on the newly emerged female insects gradually increased thereafter. C. japonica has never been detected on other invertebrates collected from the P. japonensis habitat thus far. Our data suggest that the life cycles of C. japonica and P. japonensis are synchronized.